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/*
* Copyright (C) 2016 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(WEBGL) && ENABLE(VIDEO) && USE(AVFOUNDATION)
#include "GraphicsContextGLCV.h"
#include "ImageOrientation.h"
#include <memory>
#include <wtf/TZoneMalloc.h>
typedef struct __CVBuffer* CVPixelBufferRef;
namespace WebCore {
class GraphicsContextGLCocoa;
// GraphicsContextGLCV implementation for GraphicsContextGLCocoa.
// This class is part of the internal implementation of GraphicsContextGLCocoa.
class GraphicsContextGLCVCocoa final : public GraphicsContextGLCV {
WTF_MAKE_TZONE_ALLOCATED(GraphicsContextGLCVCocoa);
public:
static std::unique_ptr<GraphicsContextGLCVCocoa> create(GraphicsContextGLCocoa&);
~GraphicsContextGLCVCocoa() final;
bool copyVideoSampleToTexture(const VideoFrameCV&, PlatformGLObject outputTexture, GCGLint level, GCGLenum internalFormat, GCGLenum format, GCGLenum type, FlipY) final;
void invalidateKnownTextureContent(GCGLuint texture);
private:
GraphicsContextGLCVCocoa(GraphicsContextGLCocoa&);
RetainPtr<CVPixelBufferRef> convertPixelBuffer(CVPixelBufferRef);
GraphicsContextGLCocoa& m_owner;
GCGLDisplay m_display { nullptr };
GCGLContext m_context { nullptr };
GCGLConfig m_config { nullptr };
PlatformGLObject m_framebuffer { 0 };
PlatformGLObject m_yuvVertexBuffer { 0 };
GCGLint m_yTextureUniformLocation { -1 };
GCGLint m_uvTextureUniformLocation { -1 };
GCGLint m_yuvFlipYUniformLocation { -1 };
GCGLint m_yuvFlipXUniformLocation { -1 };
GCGLint m_yuvSwapXYUniformLocation { -1 };
GCGLint m_colorMatrixUniformLocation { -1 };
GCGLint m_yuvPositionAttributeLocation { -1 };
GCGLint m_yTextureSizeUniformLocation { -1 };
GCGLint m_uvTextureSizeUniformLocation { -1 };
struct TextureContent {
intptr_t surface { 0 };
uint32_t surfaceID { 0 };
uint32_t surfaceSeed { 0 };
GCGLint level { 0 };
GCGLenum internalFormat { 0 };
GCGLenum format { 0 };
GCGLenum type { 0 };
FlipY unpackFlipY { FlipY::No };
ImageOrientation orientation;
friend bool operator==(const TextureContent&, const TextureContent&) = default;
};
using TextureContentMap = UncheckedKeyHashMap<GCGLuint, TextureContent, IntHash<GCGLuint>, WTF::UnsignedWithZeroKeyHashTraits<GCGLuint>>;
TextureContentMap m_knownContent;
};
}
#endif
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